I suggest building one of your own as it will give you an intricate knowledge of how the rifle works that way if anything ever breaks you can fix it yourself.

This is what I am doing. People swear by several different brands but there are ones that are re-occuring. Of those Spike's Tactical is probably the best value. Palmetto State Armory products are made by the same company as Spike's and is cheaper yet.

I am buying most of my components from Palmetto with the exception of Magpul Stock, Magpul Mags, Troy Ind forearm and sights.